Beater engine



4 Aug. 4, 1931. I w, v, KNOLL 1,817,749

BEATER ENGINE File'd June 28, 1928 5 wherein the fined pulp above the Patented Aug. 4, 1931 warren are res PATENT, orrice WILLIAM -V. KNOLL, OE DAYTON, OHIO, ASSIGNQR TO MIDWEST-FULTON MACHINE COMPANY, OF DAYTON, OHIO, A CORPORATION OF OHIO BEATEB ENGINE Application filed June 28,

My invention relates to beating engines for the treatment of pulps and fibers for paper making and the like, and more particularly to a continuous flow apparatus or finished product is continuously removed by centrifugal ac-' tion, while a supply of untreated material is being added to the quantity operated upon in the beating engine.

l i hile centrifugal action has heretofore been utilized for pulp separation usually by discharging the material from the periphery of the drum forwardly beneath the hood onto a screen by which the fine and coarse particles are separated, the present construction discharges the material rearwardly and takes advantage of the specific gravity or difference in weight of the particles in pulp to effect more thorough separation of the product, and more even grading of the fined or finished pulp whereby the output will be of uniform character. 1

The present beater engine is of the H01- lander type and isprovided with a receiver trough or collecting pan located transversely of the engine andparallel with the drum but spaced rearwardly of the backfall and level thereof a sufficient distance to permit the heavier particles of pulp discharged by centrifugal influence'from the beater drum to fall by gravity back into the pulp stream fiowing over the refined and finished portion of the pulp discharged from the rotating drum as a spray over and beyond the heavier falling articles are collected in the receiving trough in which operates a screw conveyor, by which the collected material is conveyed beyond the beater engine or into a succeeding beater engine of a series. An adjustable defiector is provided for the flying pulp particles whereby the quantity and character of the discharged material may be regulated.

The object of the invention is to simplify the structure, as well as the means and mode of operation of pulp separating and grad; ing apparatus whereby it will not only be cheapened in construction, but will be more efieient use, positive vinoperation, uni

- gine.

consists of the features of construction,

'mode of operation,

the backfall, while 1928'. Serial No. 288,858.

form in action, easily controlled and unlikely to get out of repair. I

A further object of the invention is to provide means for utilizing centrifugal action in the separation of the fined or finished pulp from the coarser portions thereof and to further grade the material according to thespecific gravity or Weight of the particles.

A further object of the invention isto provide an improved form of continuous flow beater system wherein the material is fed progressively from one beater engine to another when it has been reduced to a predetermined state of refinement.

A further object of the invention is to provide an improved relation of a collecting receptacle for refined pulp with the beater drum and backfall of a typical beating en- A further object of the invention is to providean improved. method or process of pulp separation; A y

With the aboveprimary and other incidental objects in view as will more fully appear in the specification,

the parts and combinationsthereof, and the or their equivalents, as hereinafter described and set forth in the claims. I

Referring to the accompanying drawings, Fig. 1 is a side elevation of a typical Hollander beating englne to which the present invention has been applied. Fig. 2 is a plan I view of a continuous flow system embodying the present nvention wherein the refined pulp is progressively fedfrom one beater engine to another;

Like parts are indicated by similar char Q actersof reference throughout the several views.

In the accompanying drawings, 1 is the vat or tub having'therein a mid-feather 2 forming a circuitous path for the flow of pulp being treated. side channels of the engineis arotary beating drum 3 co-operating with the usual bed plate Ate reduce the fibers of the pulp which between theroll endjk edplaterj...

the invention Located in one of the i Locate: at the r ar of the rotary drum 3 is the isual bi ckfall 5 over which the treated pulp raised by the action of the drum flows, preparatory to again completing the circuit of the beating engine for repetition of the operation; Enclosing the drum 4 is the usual hood 7. Such is theusual construction of a typical Hollander beater engine Which coarse' and too heavy to be discharged as lmi lied material.

As the beater drum Zlrotates the major quantity of the pulp flows in a normal stream over thet'op of the baclrfall down the incline into the return cl annel of the beater engine. However, there Will be neverthea" considerable quantity of beaten pulp which by adherence to the rotatingdrum will be carried above the liquid level ofthe flowing stream traversing the baclrtall 5 and Will be discharged upwardly and rear- .vardly from the drum by centrit igal force in theform of a spray. The coarse or heavy pa ticles of this pulp spray unfit for discharge trim the beating engine, have not sufllcientmomentum to carry them a great (iisimce and hence their trajectory Will be ve y short and they will fail to 'each the collecting or re eiving receptacle 9. More finely reduced and lighter portions of the pulp being disel god t ough a higher trarjectory and achieving lon 'er flight .vill fall into the receiving or coile c ng receptacle 9 hereas the heav ci and coarse portions return to the flowing pulp stream intermediate such receptacle and the backfall.

Interi the housing 8 there is pivoted an c'c deflector plate ll, the free eagle or noi'mally spaced a considerable distance a'b-iive the margin of the collecting trough or receiving pan 9'. This de fiector plate or vane 11 is adjustable by scren stem 12' tovary its remargin of the collector reby varying the height of the v U such receptacle. 13y adthis deflector plate a greater or less J i la oi material may be permitted-to enter this co r receptesle for discharge i'rcm t; Likewise the character of the material will vary witi its quantity. The collector receptacle 9 extends transversely of the beater engine parallel with material is being introduced I the rotating drum. 3 substantial width thereof. The side of thi receptacle 9 is inclined up War lly and lateral 7y toward the beater drum. Beyond the limit of the drum the side Wall extend-d vertically at Bio form a conveyor trough by W iich the collected pulp is conveyed to the next beater engine of a series or to a tank or other receptacle as may be desired. A screw conveyor 14 extends through the collecting receptacle 9 and the continuing conveyor trough and serves to nove the material which may be too dense or heavy to flow by gravity. However, if so desired the trough portion may be inclined, as may also the receiving receptacl- 9 to induce a g'avity flow of the collector material from one beater engine to another, or from the beater crizine to a receiver tank, In Fig. 2 there is shown a succession of beater engines to which the present invention has been a plied. The. pulp discharged from the drum 3 ct e 13: engine into the adjacent collect receptacle 3) conveyed. through thetrough continuation of such receptacle 1' y the conveyer to the succeeding beate' en inc. This 4 "-harge conduit in its bottom r v l5 coincident with the return. chainel of the succeeding beater on llv ll e full screw gine through which the pulp discharged in such beatr engine for re lnient.

l "oduct result 21;: irom each Voted in the rccc nc conveyed to the 19 series.

the col ecting 'rccepta :ics 1' the rcarof the beater c y and dischargr..*= material by ccatrifuc' Y .-n is parrn'ient engin of t By local llO is fr At the same no :1

engine throueh' the co ivcvor trough d scharging thr-tiugh the outlet 15 into the return channel of the engine. v

From the above description it will be apparent that there is thus pro 'ded construction of the ch a ter described, p ssing the pi rticula features of advan 35 f re enumerated desirable. but whirl \Tiously is suceptihl f form, proportions in ingement r, Without departing from the ninciple in- L volved or sacrificing any of its advantages.

conveyor trough located conveyor trou portion of the discharged While in orderto comply with the statute the invention is described in language more, or less specific as to structural. features, it is to be understood that the invention is not limited to the specific details shown, but that the means and construction herein dis closed comprise the preferred form of several modes of putting the invention into effect, and the invention is therefore claimedin any of its forms or modifications within the legitimate and valid scope of the ap pended claims.

Having thus described my invention, I claim: i

1. The combination with a beater engine including a heater roll'and a backfall, of a in spaced relation with the roll and beyond the backfall, said trough being located within the range of a portion of the pulp discharged by centrifugal influence from the periphery. of the roll, and a deflector plate overhanging the path of dischargt-id pulp and adjustable from above into intercepting relation with the centrifugally actuated pulp stream, a portion of which is received in the trough and conducted thereby beyond the beater engine.

2. The combination with a heater engine including a beater roll and a baclrfall, of a conveyor trough'located in spaced relation with the roll and beyond the backfall, said trough being located within the range of a portion of the pulp discharged by centrifugal influence from the periphery of the roll, andreceiving a portion thereof, and a deflector plate positioner above the level of said trough and adjustabletoward and from the trough to vary the extent of the intermediate opening through (which the pulp is discharged into trough anda screw conveyor located in said trough for discharging through the trough and beyondthe beater engine, such portion the pulp as he received in said trough. v

3. The combination with a beater engine including a beater roll and a baclrfall, of a gh located in spaced relation with the roll and beyond the backfall, said trough being located within the range of a portion of the pulp discharged by centrifugal infiuence from the periphery of the roll and an adjustable guide plate directing a pulp into said trough.

4. The combination with a heater engine including a beater roll and a baclrfall, of a conveyor trough located in spaced relation with the roll and beyond the baclzfall, said trough being located within the range of a portion of the pulp discharged by centrifugal influence from the periphery of, the roll, and an adjustable deflector co-operating with the trough and by its adjustment diof the cenrecting a greateror less quantity the trough.

trifugally discharged pulp into 5. The combination witha beater engine including a roll and a backfall, of a pulp re-.

ceiver located in substantially parallel spaced relation with the roll and beyond the backfall into which areduced portion of the pulp is discharged from the periphery of the roll by centrifugal influence and means for varying at will the quantity of discharged material entering the receiver.

6. The combination with a beater engine including a roll and a baclrfall, of a pulp receiver located in substantially parallel spaced relation with the roll beyond the backfall and beyond the trajectory range of unfinished portions of pulp discharged by centrifugal'influence from the periphery of the roll, and collecting the centrifugally discharged finished portions of the pulp and manually adjustable means for varying the collecting capacity of the receiver;

7. In an apparatus of the character de scribed, means for causing an'aerial discharge of'pulp of mixed grades, whereby different grades will have different trajectory ranges and meansvariation of the trajectory range for grading the pulp including separate receivers lo? cated different distances from the point of discharge into which different portions of pulp of different grades fall by gravity.

1 8.-A beating engine including a tub, a beater roll and a backfall over which the pulp is discharged by the action ofv the beater roll, characterized by a receiver for finished pulp located in spaced relation above the level of and beyond the backfall into which a limited quantity of the pulp is discharged by centrifugal influence from the periphery ofthe roll, said receiver being positioned sufficient distance from the roll to permit unfinished portions of pulp dischargel from said roll by centrifugal influence to fall into the pulp stream flowing for utilizing such over the backfall and a curved plate pivoted i above the path of discharge of the pulp and capable of swinging motion into and out of the pulp stream for varying the quantity of pulp reaching the receiver.

9. The combination with a beater engine including a'beater roll and bachfall, of a pulp receiver located in spaced relation with the drum and beyond the backfall into which a reduced portion of the pulp discharged :froin theperiphery'of the roll by centrifugal influence is received, and adjustable means for regulating the discharge.

10. The combination with a beater engine including a beater roll and backfall, of a pulp receiver located in spaced relation with the drum and beyond the backfall into which a reduced portion of the pulp 'dischargedfrom the periphery of the roll by centrifugal influence' is received, and an adjustable deflector for divertinga greater or lSO less proportion of the discharged pulp into said receiver.

11. The combination with a beater engine including a beater roll and a backfall, of a conveyor trough located in spaced rela tion with the roll and beyond the backfall, a hood or ending from the roll over and enclosing the conveyor trough, said trough being located within the range of and receiving a portion of the pulp discharged by centrifugal influence from said roll and beneath said hood, which received pulp is dis charqet. through said trough from the beater cn e and an adjustable top in said hood adapted to be r ised and lowered relative to the pulp stream beneath which the discharged pulp enters the trough.

12. In a system of pulp preparation, a series of beat-er engines, each having a beater roll, a. continuous conveyor common to the several beater engines of the series, said conveyor being located beyond the backfall in spaced relation with the several beater rolls, there being ample intervening space between the rolls and conveyor through which coarse and unfinished pulp centrifugally discharged from the roll ith limited trajectory may fall by gravity into the pulp stream of the engine, said conveyor being located beyond the trajectory of such coarse and unfinished pulp particles but within the range of trajectory of pulp discharged by centrifugal influence from the periphery of the several rolls and receiving pulp simultaneously therefrom, and a discharge outlet from said conveyor of each of the several beater engines, whereby pulp centri'fugally discharged from the periphery of the roll of one engine is discharged into another beater engine of the series.

13. In a system of pulp preparation, a plurality of beater engines, each including a beater roll, simultaneously discharging coarse and fined pulp material 'from the periphery thereof, conveyor means connecting succeeding beater engines of the plurality one with another, said conveyor means between succeeding engines being located within the range of pulp centrifugally discharged from the roll of one engine and received in said conveyor and discharging the received pulp into the succeeding beater engine.

14.. In a system of pulp preparation, a

plurality of beater engines, a continuous@ screw conveyor common to the succession of beater engines, means for simultaneously discharging pulp from each engine of the ilurality said parts being disposed to effect sereenlcss separation of the coarse and fine portions of the pulp, the latter being received into said conveyor, said conveyor having a series of discharge outlets through which the collected pulp is discharged into the next beater engine of the plurality.

15. In a system of pulp preparation, a plurality of beater engines, each including a beater roll from which both coarse and fined pulp particles are simultaneously discharged by centrifugal influence, a conveyor system progressively connectingthe beater engines in series and conveying segregated pulp portions from one beater engine to another, and means for segregating and delivering pulp portions into said conveyor system by centrifugal influence.

16. The herein described method of grading pulp and the like, consisting in discharging the material by centrifugal influonce toward a distantly located receptacle whereby the heavier particles will fail to reach such receptacle and will fall into the supply body for reworking while only the lighter materials will be received in said distantly located receptacle.

17. The herein described'method of gradpulp under influence of gravity consisting in discharging the pulp in aerial flight whereby pulp portions of different weight will be given different trajectory range and positioning pulp receiver at a distant point corresponding to the trajectory range of the predetermined grade of material.

18. The herein described method of grading projecting a stream of pulp of mixed grades and allowing such material to fall by gravity, whereby pulp of different specific gravity will fall at different distances from the point of discharge and segregating the pulp falling at a predetermined distance from the point of discharge.

19. The herein described method of grading pulp, and the like, consisting in discharging the pulp material centrifugally from a beater roll, thereby giving to pulp of different grade different trajectory ranges and segregating the pulp portions having different predetermined ranges.

20. A beating engine including a tub, a beater roll and a backfall over which the pulp is discharged by the action of the roll, characterized by a receiver for finished pulp located in position to receive therein lighter portions of pulp discharged by centrifugal influence from the periphery of the roll, said receiver being located beyond the trajectory range of unfinished portions of pulp discharged from the roll by centrifugal infiuence.

21. The process of conditioning pulp for paper making, and the like, consisting in beating the pulp in a beater engine in which is maintained a constantly flowing pulp stream projecting a portion of the beaten pulp above the level of the flowing pulp stream and separating the elevated port-ion by gravity, and segregating the distantly aaoer Jul) and the like, consistim in projected portions for discharge from the beater engine and permitting vthe less distantly projected portions to return to the pulp stream. I

In testimony whereof, I have hereunto set my hand this 18th day of May A. D. 1928.

WILLIAM v. KNOLL.

CERTIFICATE OF CORRECTION.

Patent No. 1,817,749. Granted August 4, 1931, to

WILLIAM V. KNOLL.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 4, line 41, claim 13, beginning with the word "In" strike out all to and including the word "influence" line 76, of claim 15, and insert the following as claims l3, l4, and 15:-

13. In a continuous system of pulp preparation, a plurality of beater engines, each including a beater roll simultaneously discharging coarse and fined pulp material from the periphery thereof of a continuous conveyor means common to the plurality of beater engines connecting succeeding beater engines of the plurality one with another, said conveyor means being located beyond the trajectory range of coarse and unfinished pulp particles and within the range of fined pulp simultaneously discharged centriiugally from the roll of one engine and received in said conveyor, and discharging the received pulp into the succeeding beater engine.

14. In a system of pulp preparation, a plurality of beater engines, each including a heater roll, a continuous conveyor common to the succession of beater engines, means for simultaneously discharging coarse and fined pulp centriiugally from the beater roll of each engine of the plurality, said parts being disposed to etiect screenless separation of the coarse and tine portions of the pulp, the latter being received into said conveyor, said conveyor having a series ot discharge outlets through which the collected pulp is discharged into the next beater engine of the plurality.

15. In a system of pulp preparation, a plurality of beater engines, each including a beater roll from which both coarse and fined pulp particles are simultaneously discharged by centrifugal influence, a continuous conveyor system common to all of the beater engines of the plurality, said conveyor system having both intake and discharge communication with each of the succeeding beater engines of the plurality progressively connecting the beater engines in series and conveying segregated pulp por tions from one beater engine to another, and screenless means for segregating the coarse irom the tine material and delivering the fine pulp portions into said conveyor system by centriiugal influence.

and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 12th day of April, A. l). 1932.

v M. J. Moore, (Seal) Acting Commissioner of Patents. 

